Process of crinkling and reenforcing paper



May 10,1927.

W. W. ROWE PROCESS OF CRINKLING AND REENFORCING PAPER Filed July 18, 1924 lllllllllxlllxll assed M... 10.1921.

UNITED STATES 1523.515 PATENT" OFFICE.

WILLIAM WALLACE ROWE, OF'GINCINNATI, OHI O, ASSIGNQR TO THE PAPER SERVICE COMPANY, OF CINGDVNATI, OHIO, A' COBPORAEEION OF OHIO.

rnocnss or osmium earn minnroacmernrnn.

Application filed July 1-8,

--My invention relates to a process of forming a crinkled paper with a surfacing material on one side thereof, which surfacing material'when plastic may be employed as a 'binder for securing a stretchable fibre backing or other form of backing.

In the manufacture of crinkled paper, it has been the practice to wet the paper and pass it between a rubber and a steel roll. This causes the moist sheet to adhere to the steel roll from which it is stripped. by a brass knife against the roll thereby crinkling the paper. When it is desired to apply a bituminous coating or some cementing l5 agent or varnish to the paper, as for example in making a crinkled Haper sheet'backed.

with burlap, where I o inarily use asphalt as a binder between the paper and thefasphalt, it has been the'practice to dry the then scrape away the excess asphalt in such a way as to avoid flattening out the prinkles "phalt' within the tiny folds of the crinkles,

.in the aper.

been m practice, together with 'the care away with.

' Thus it 1s my object to coat a 'sheet of dry paper with a cementing agent, suchvas asphalt, and. in the same operation to crinkle the paper. 'It is also 'my ob ect,

where desired, to unite the: crinkled paper while'the asphalt is still plastic and adhesive witha body of material which acts as a backing. The crinkled nature of the pa er,

where the backing has agreater stretch 7 an ordinary paper, is-a very valuable feature,

since the pa will stretch and not tear,

whentheha stretches. J

" 'I accomplish my objects -b that certain seriesof steps, to behereina i: more specificall pointed outand claimed.

Inthedrawirrgthefigureisadmgram of s mechanism I have found suitable'foruseinmyprocm diagram, the tank 1 is an asphalt into which a driven roll 2, which ismsteelroll, .asisnsediiimaking w... arri rs pp in 2, is adjusted the surface of the roll 2, thereby the depth of crinkled paper, surface it with asphalt, and

-.c r1nl rl1ng of the paper, and in a com lete coatmgof the paper with asphalt, with The double handling of the paper as sheet.

the asphalted paper. This results in adh'er- 5 serial D the film of asphalt carried over upon it. The roll 13 presses the aper to the surface of the roll 2,-causingt e paper to adhere to the roll 2,'so that it will crepe against the brass-'scraper i The brass. scraper 4 Y rests against the steel roll 2, and lifts the paper away therefrom. The paper is-drawn ofli the scraper -4at a speed slower than it Is piled up against the' scraper. The relation of these two s eeds governs the amount of stretch put in t e paper.

The paper 5 is on a roll 6, whence it passes over rollers 7, which feed it between the asphalting roll 2 and the riding roll 13., r The paper becomes surfaced and thus adheres'to the roll 2,.with the help of pressure from the rolLlB. The-brass knife or scraper 4 lifts away the pa 'er, and the asphalt film adherent thereto. his action I have found results in a very thorough and excellent d generally covering the back of the The paper may then be passed over a scraper 8, to remove any surplus asphalt,

"and if desired, dried and stored."

To use the process above described as one stage in the formation I of crinkled paper cemented toja backing sheet, such as burlap, for example, -I providea pair of rolls 9, 9, around which t-he asphalted web is passed. A web 10 of burlap or other backing is also pa'sed around said rolls, between them and 9 0 ence of the backing and the united websv are passed'over rolls 11, 11, and thence to a rewinding drum'12, or other point for use or storage.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is: v 1. That process'of creping' dry' paper, without the use oglmgisture or esive requiringdl'ylng' w 'c'consisisinaplying a heat plastic bituminous substance to the paper, bringing said substance to a position of adhesion of a creping roll, so as tobind the paper thereto, and removing the paper with a creping knife so as to crepe the 2That process of crepmg dry paper, M11?- us ormmsture or quiring drying, which consists in applying a heat lastic bituminous substance to the paper, ringing said substance to a position of adhesion of a crcping roll, so as to bind the paper thereto, and removing the paper wit a creping knife so as to crepe the same, said bituminous substance being applied in sufficient as an adhesive and binding a backing sheet to the creped paper by means of said bituminous substance, while same is in a heat plastic conditionf 3. That process of ereping dry paper, without the use of moisture or adhesive reuirin dr in which consists in a nlvin 5 D7 v E a heat plastic bituminous substance to the paper, bringing said substance to a position of adhesion of acreping roll, so as to bind the paper thereto, and removing the paper with a creping knife so as to crepe the same, said bituminous substance being applied in sufficient quantities to later serve as an adhesive, and prior to the solidification thereof following the creping, applying uantities to later serve a backing sheet to the creped paper, thereby causing it to adhere thereto.

4. A processof treating paper which consists in passing a dry sheet over a roll under pressure with the interposition of a heat plastic coating agent between the sheet and the roll and stripping the sheet from the roll by a scraper set against the said roll, thereby crinkling the sheet, and then passing the sheet into contact with a backing sheet, whereby the backing sheet caused to adhere to the crinkled paper.

5. A process of treating paper which 'eonsists in passing a dry sheet of paper between two rolls with the interposition of a film of bituminous substance of adhesive nature between the paper and one of the rolls, then stripping the paper away from the said roll by means of a scraper set against the roll, and then while the,bitumen is still soft and adhesive, bringing the crinkled sheet resulting from the stripping into contact with a backing sheet.

WILLIAM WALLACE ROWE. 

